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0
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1answer
18 views

ufw rule deny default outgoing

I want to deny all outgoing traffic by default, except ssh connections. I added this rules: ufw default deny outgoing ufw allow ssh Then I restarted the firewall by: ufw disable ufw enable ...
0
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0answers
39 views

“VPN connection failed” when ufw is on even if there are no rules in ufw interface

Ubuntu 14.04 After update related with ufw and switching nvidia drivers back and forth, suddenly, I can't establish VPN connection to internet. I've deleted all rules and reseted profile in ufw ui but ...
0
votes
0answers
54 views

Unable to ping/SSH web-facing server

I just installed Ubuntu 14.04 LTS onto a box that's set up with one local NIC and one web-facing NIC. The web-facing NIC is configured with a static IP per my ISP. Because networking and security ...
1
vote
0answers
47 views

ufw firewall - how to only “allow” when I am going through a proxy

I am using a proxy to navigate on internet, and I am trying to setup a firewall that will only let me connect to internet via this proxy: if I forgot to turn on the proxy, that I should not be able ...
0
votes
1answer
28 views

sudo rule with placeholder

i want to allow the use of /usr/sbin/ufw for a special user. But only for a given command: in my /etc/sudoers file i have now (for blocking IPv4 addresses): blockuser ALL=NOPASSWD: /usr/sbin/ufw ...
1
vote
0answers
158 views

UFW before rules for VPN forwarding

I'm trying to setup an OpenVPN server on Debian 7, following this guide: How to install and set-up OpenVPN in Debian 7 (Wheezy) In step 15 I have to setup forwarding and IPtables rules. I prefer to ...
3
votes
1answer
610 views

How to measure iptables load?

I have added about 3500 IP addresses to iptables using ufw on a Debian 7 and I am wondering if this has any impact on the performance of my server. How can I measure that?
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0answers
364 views

How to forward Remote-Desktop Port across interfaces using ufw?

Machine A has two network interfaces: Network eth0: 10.10.20.0/24 Network wlan0: 192.168.1.145/24 Machine A has 192.168.1.145 as Default Gateway, and also a route to pass 172.16.0.0/16 to ...
0
votes
0answers
141 views

Sabayon: UFW blocking all incoming connections, although default policies are set to “Allow”

I have the following problem with ufw/iptables: When I start/reboot my computer, ufw fails to load: # ufw status Status: inactive I did enable it: # systemctl enable ufw Still I do have many ...
3
votes
0answers
148 views

Why doesn't ufw enforce firewall rules for traffic coming from Virtualbox VM

I've been running Linux Mint 17 on my laptop for a while and thought I had it locked down to not allow any incoming traffic through "Firewall Configuration" (ufw GUI)—I have also validated this from ...
0
votes
1answer
375 views

iptables applied in local machine, Can't access remote ssh

I want to SSH to 192.168.1.15 server from my machine, my ip was 192.168.1.99. Source destination was UP, with IP 192.168.1.15. This is a LAN, there are 30 machines connected to the network and ...
1
vote
2answers
2k views

UFW is blocking DNS

I am configuring the security in my server. For easier the manage at the firewall, I installed the UFW. I did some settings in the UFW and I allowed some ports. Therefor when I enabled it the DNS ...
0
votes
1answer
108 views

Limit log sizes in particual ufw's logs

(Ubuntu 14.04 x86) I have enabled ufw and enabled logging (level low - the default). Even on low there is an entry about every second (it is accessible from the Internet - I guess just port scans ...
12
votes
1answer
12k views

UFW: Allow traffic only from a domain with dynamic IP address

I run a VPS which I would like to secure using UFW, allowing connections only to port 80. However, in order to be able to administer it remotely, I need to keep port 22 open and make it reachable from ...
6
votes
1answer
3k views

Creating UFW rule to allow application to use dynamic ports

I am currently trying to get a Google Chromecast device to work through my Ubuntu 13.04 based computer. Currently, the Google Chrome extension shows "no devices found" as long as my UFW firewall is ...
2
votes
1answer
419 views

ufw firewall rules for security.debian.org

What is a practical way to manage a whitelist of firewall outgoing connection rules for http://security.debian.org (on a server that blocks all outgoing connections by default)? My understanding is ...
1
vote
0answers
47 views

ufw in laptop running Ubuntu

I installed ufw and enabled it. The status is: Status: active Logging: on (low) Default: deny (incoming), deny (outgoing) New profiles: skip But, I am able to navigate the web, get emails and ...
4
votes
1answer
1k views

How can I disable UFW logging for a specific event?

My router sends out multicast packets in regular intervals that are blocked by UFW's standard policies. These events are harmless but spam my syslogs and ufwlogs. I can't change the router's behaviour ...
3
votes
1answer
550 views

Can I limit connections per second for certain UserAgents using UFW?

GoogleBot is hitting my server hard - and even though I have set the CrawlRate in Webmaster Tools it is still hiking up the load on my server and slowing down Apache for the rest of the normal web ...
5
votes
1answer
6k views

Uncomplicated Firewall (UFW) and UPNP

Is it possible to configured UFW to allow UPNP between computers in the home network? Everything works if I turn off the firewall. I can see in syslog the firewall is blocking me. I've tried all ...